Expiratory muscle strength trainer adapter



FIG. 1 is a top side view thereof;

FIG. 2 is a bottom side view thereof;

FIG. 3 is a left side view, the right side view being a mirror image thereof;

FIG. 4 is a side sectional view taken along lines 5-5 from FIG. 3 thereof;

FIG. 5 is a front view thereof; and,

FIG. 6 is a rear side view.

The break lines indicate that the appearance of any portion of the expiratory muscle strength trainer adapter between the break lines forms no part of the claimed design. 

CLAIM The ornamental design for an expiratory muscle strength trainer adapter, as shown and described. 